Growth promoting effect of bacterial treatment in rice
In order to test the effective contribution to plant growth of
one PGP strain isolated, the isolate SVPR30, identified by 16S
rRNA gene sequence as a strain of Bacillus sp., was chosen for in
vivo experiments. This strain was characterized as a high IAA
and siderophore producer, being also able to solubilize
phosphate and fix a considerably high amount of nitrogen.
The amount of in vitro biological nitrogen presented by this
strain was 6.8 mg N ml1
.
The inoculation of rice with Bacillus sp. SVPR30 strain
showed a significant increase in the roots and shoot parts of
rice plants when compared with the controls within 15 and 30
days after sprouting